Spindle of yarn spinning machines



Aug. 8, 1950 R. s. PEEPLES SPINDLE 0F YARN SPINNING MACHINES Filed May 17, 1949 ATTORNEY RICHARD GPEEPLES Patented Aug. 8, 1950 UNITED STATES PATENT 'OFFiClE.

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My invention relates to improvements in spindles of yarn spinning machines.

An important object of the invention is to provide a spindle having a novel sediment chamber or sludge trap, wherein any sediment or sludge present in the lubricating oil for the spindle may settle out, and the spindle will thus be prevented from binding during its operation.

A further object is to provide a lubricant sediment chamber or sludge trap for spindles, which can be made either as an attachment for presently existing standard types of spindles, or readily incorporated in the manufacture of new spindles.

A further object is to provide a sludge trap attachment which may be applied to presently existing spindles with minimum alteration of such spindles, the sludge trap being extremely simple and very inexpensive to make.

A still further object of the invention is to provide a sludge trap or sediment chamber to be mounted upon the spindle base without substantially increasing the diameter of the base, thus permitting the use or the standard nut generally employed to detachably secure the spindle to the spindle rail.

Other objects and advantages oi the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a spindle embodying my invention and having a sludge trap mounted thereon,

Figure 2 is an enlarged central vertical longitudinal section through the spindle, parts in elevation, part broken away,

Figure 3 is a similar section taken on line 3-3 oi. Fig 2,

Figure 4 is a horizontal section taken on line 4-4 Figure 2,

Figure 5 is a similar section taken on line 5-5 of Figure 2,

-my invention, the numeral l0 designates a conventionally spindl rail of a spinning machine, and provided with a plurality of openings l i to receive a plurality of spindles, each such opening 4 Claims. (Cl. 308-) and spindle being shown in the drawing. The spindle shown comprises the usual spindle base including an integral upstanding cylindrical tubular extension or sleeve i3, having its top open, and formed with a conventional oil neck It having an oil passage L5 as shown. The oil neck is provided with a conventional hinged cap it. The spindle base i2 further comprises an integral depending cylindrical tubular stem or sleeve l1, having an upper smooth portion l8 for engagement within the opening II, the spindle base having an enlarged flat annular shoulder it, integral therewith, at the top of the sleeve i1, and adapted to engage upon the top of the rail ill for supporting the spindle. The spindle base has a central longitudinal bore '20 of uniform diameter extending from the top of extension iii to a point near the bottom of the sleeve II. The sleeve l.| includes a bottom end 2| having a central longitudinal opening 22, and also a plurality of circumierentially spaced relatively small drain openings 23 surrounding the central opening ,22, as shown, and leading from the bore 20. Below the smooth portion is and below the spindle rail it, the sleeve n is provided with external screw threads 24 the sleeve II has its diameter reduced for forming a reduced smooth cylindrical portion 21 of uniform diameter. The oil passage it leads into the bore 20 as shown.

Mounted within the bore 20 of the spindle base I2 is the usual tubular hearing or bolster 28, including an upper smooth cylindrical portion 29 having a close fit within the upper end 01 the bore 20, and provided with a' radial longitudinal key 30 to engage in a longitudinal key-way 3i, formed in the upper end of the bore 20. The key it prevents rotation of the bolster 28. In the upper portion 29 of the bolster, it is provided with diametrically oppositely disposed external longitudinal grooves 32, and a plurality of longitudinally spaced openings, or ports 33 ar provided leading from the bore 34 of the bolster into the grooves 32. Below the portion 29 of the bolster, its outside diameter is reduced for producing an annular space 35 between the bolster and sleeve l'l below the oil passage i5, as shown; and near and above the lower end of the bolster, it is provided in its side with diametrically oppositely disposed longitudinal slots 36, for a purpose countersunk to provide a central conical. seat' or thrust bearing 31 for'the spindle, and the bolster further includes a solid bottom extension 38, conically tapered at its lowermost end 39. The extension 38 is provided with a plurality of external longitudinal shallow grooves 40, a diametrically oppositely arranged pair of which lead into the bottom ends of the slots 3, Figure 7. The lowermost end of the bolster 28' rests upon the lower end 2i of the spindle base, as shown, and is spaced radially inwardly of the drain openings 23, so that these openings are uncovered and in communication with the annular space 35 at all times, Figure 3. The lower end of the bolster covers the central opening 22, as shown, but the grooves 40 place th Opening 22 in communication with the annular space 35. Figures 2 and 7.

The numeral 4| designates a conventional spindle, having the usual acorn 42 formed thereon, and carrying the usual whorl 43; the whorl engaging over the upper end of the extension H as shown in Figures 2 and 3. The spindle includes an integral lower shank 44, which extends into the bore 34 of the bolster and has a close smooth running fit therein. The lower portion 44' of the shank 44 tapers slightly and is provided with a pointed conical lower end 45 rotatably engaging in the conical seat 31.

A trap for sludge and sediment is provided in the form of a thin walled straight cylindrical tube 46, which is preferably expanded by heat and applied to the lower portion 21 of the sleeve 31, and then allowed to cool so that it will have a tight shrink fit upon the sleeve. The upper end of the tube 46 abuts a narrow shoulder .46 at the lower end of the screw threads 24, as shown, and the tube 46 extends below the bottom end 2| of the spindle base for a substantialdistance to form a sludge receiving chamber 41. In its lowermost end, the tube 48 is provided with an internally screw threaded bushing 48, rigidly secured therein, and receiving a removable screw threaded drain plug 49. The outside diameter of the tube 45 is uniform and slightly less than the inside diameters of the nut 25 and washer 26, so that the standard nut and washer may be readily applied over the tube 48.

In operation, oil is supplied through the passage l of the neck l4, and such oil enters the annular space 35 between the bolster and sleeve II. This oil will pass through the openings 23 at the bottom of the space '35, and iii] up the chamber 41 as well as the entire space 35, up to the level of the neck passage IS. The spindle 4| rotates at high speed, as is'well known, and its lower shank 44 rotates within the bolster 28. Oil enters the bolster through the slots 36, which are adjacent to the lower tapered portion 44' of the shank 44. This oil will slowly work its way up between the bolster bore 24 and shank 44 to thoroughly lubricate the spindle shank. and some of the oil will pass out through the radial ports 33 at the top of the bolster, and then pass downwardly through the lcngitudinal slots 32, returning to the annular 35. In this manner the oil continuously circulates slowly about the shank 44 during its rotation.

Due to the presence of water from the humidifier system and lint in the air of the spinning room, and other factors. the lubricating oil may contain some solid particles of foreign matter apt to form a sludge or paste with the oil, which may tend to bind the spindle shank 44 and cause dam age. The tube 46 forming the sludge receiving chamber 41 is designed to prevent this by permitting gradual settling of the solid matter or sludge through the drain openings 23 and 22 into the chamber 41. The grooves 40 permit the passage of some sludge through the central opening 22, which opening would be normally covered by the lowermost end of the bolster in a conventional spindle; In some spindle bases, due to their design, it is not practical to form the surrounding' drain openings 23. In that case, the grooves 40 are provided and will permit the sludge to settle into the chamber 41, through the central opening 22. I also contemplate omitting entirely the grooves 40 and relying upon the drain openings 23. Since the chamber 41 is below the stationary end 2| of the spindle base, and entirely remote from any turbulence due to the rapid rotation of the spindle, there is no tendency for the sludge which settles in the chamber 41 to be stirred up and recirculated upwardly into the annular passage 35 or, into the bolster. During the circulation of the oil between the spindle base, bolster, and spindle, the solid matter or sludge will settle into the trap or chamber 41, as stated. The sludge in the chamber 41 may be cleaned out by removing the drain plug 49. It is obvious that.

the tube 46 forming the sludge trap can be readily applied to existing conventional spindles in the field, or it can be supplied with new spindles during their manufacture.

It is to be understood that the form of the in vention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I claim:

1. In a spindle mounting, a tubular spindle base having a flange near its upper end and a screw threaded portion spaced axially from the flange and arranged beneath the same, said spindle base having a lower reduced-portion extending axially beyond the screw threaded portion, said lower reduced portion having opening means in its lower end, a tubular bolster disposed within the tubular spindle base and having a lower reduced portion, said tubular bolster being provided near its upper and lower ends with openings, a rotatable spindle having a shank mounted within the tubular bolster, a tube mounted upon the reduced lower portion of the spindle base and having a contact fit therewith, the outside diameter of the tube being less than the inside diameter of the screw thread of the screw-threaded portion, the tube extending below the tubular bolster for a substantial distance for forming a sludge trap, and a nut to engage with the screw threaded portion of the spindle base, said nut having an inside diameter greater than the outside diameter of the tube.

2. In a spindle mounting, a tubular spindle base having a flange near its upper end and a screw threaded portion spaced axially from the flange and arranged beneath the same, said spindle base having a lower reduced portion extending axially beyond the screw threaded portion, said lower reduced portion having opening means in its lower end, a tubular bolster disposed within the tubular spindle base and having a lower reduced portion, said tubular bolster being provided near its upper and lower ends with openings, a rotatable spindle having a shank mounted within the tubular bolster, a tube mounted upon the reduced lower portion of the spindle base and having a clamping contact flt therewith, the outside diameter of the tube being less than the inside diameter of the screw threads 01' the screw-threaded portion, the tube extending below the tubular bolster for a substantial distance for forming a sludge trap, a removable element connected with the lower end of the tube so that the sludge trap may be drained, and a nut to engage the screw threaded portion of the spindle base, said nut having an inside diameter greater than the outside diameter of the tube.

3. In a spindle mounting, a tubular spindle base provided in its lower end with a central opening, a tubular bolster disposed within the tubular spindle base and having a lower reduced portion, said tubular bolster being provided near its upper and lower ends with openings, the lower end of the tubular bolster covering the central opening and the tubular bolster being provided upon its periphery and near its lower end with longitudinal grooves which lead into the central open- 20 ing, a tube mounted upon the lower portion of the spindle base and extending below the tubular bolster for forming a sludge trap.

4. In a spindle mounting, a tubular spindle base having a bottom, said bottom having a group of 25 openings arranged near the side of the tubular spindle base, a tubular bolster disposed within the tubular spindle base and having a lower reduced end to contact with the bottom of the tubular spindle base, said tubular bolster being provided near its upper and lower ends with openings, a rotatable spindle having a shank mounted within the tubular bolster, and a tube mounted upon the lower portion of the spindle base and extending below the tubular bolster for forming a sludge trap.

RICHARD G.- PEEPLES.

'REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Niunber Name Date 1,401,485 Nainteau Dec. 27, 1921 FOREIGN PATENTS Number Country 7 Date 1,075 Great Britain June 29, 1905 

